| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 44076 |
95.1%
|
| 2 | YES, SOME DIFFICULTY | 1966 |
4.2%
|
| 3 | YES, A LOT OF DIFFICULTY | 288 |
0.6%
|
| 4 | CANNOT PERFORM ACTIVITY AT ALL | 39 |
0.1%
|
| Sysmiss | 4107 |